Quarterly report pursuant to Section 13 or 15(d)

Contingencies (Details)

v3.3.0.814
Contingencies (Details)
$ in Thousands
 1 Months Ended 3 Months Ended
Oct. 31, 2015
USD ($)
Jul. 31, 2015
USD ($)
Apr. 22, 2014
USD ($)
Nov. 30, 2012
Jun. 30, 2004
Oct. 31, 2015
USD ($)
Apr. 30, 2014
USD ($)
Jun. 20, 2014
USD ($)
Contingencies (Details) [Line Items]                
Gain Contingency, Patents Allegedly Infringed upon, Number         6      
Number of Licensee Patents 4         4    
Gain Contingency, Patents Found Not Infringed upon, Number       1        
Gain Contingencies Prejudgement Interest           $ 12,500    
Gain (Loss) Related to Litigation Settlement $ 170         6,800    
Estimated Litigation Liability, Current 10,000         $ 10,000    
Affymetrix Inc [Member]                
Contingencies (Details) [Line Items]                
Payments for Legal Settlements 6,800              
Perkin Elmer [Member]                
Contingencies (Details) [Line Items]                
Escrow Deposit               $ 7,000
Luminex [Member]                
Contingencies (Details) [Line Items]                
Litigation Settlement, Amount   $ 7,100            
Siemens [Member]                
Contingencies (Details) [Line Items]                
Litigation Settlement, Amount   9,500            
Royalty Revenue   $ 1,000            
Agreement [Member] | Affymetrix Inc [Member]                
Contingencies (Details) [Line Items]                
Litigation Settlement, Amount     $ 5,100          
Proceeds from Legal Settlements     4,300          
Litigation Settlement, Expense     $ 800          
Subpoena [Member]                
Contingencies (Details) [Line Items]                
Investigation Period           The time period initially covered by the investigation was from 2004 through 2011    
Estimated Litigation Settlement Amount             $ 2,000  
Period Over Which Settlement Amount Has to Be Paid             5 years  
Estimated Litigation Liability, Current 400         $ 400    
Estimated Litigation Liability, Noncurrent 800         800    
Additional Payment of Litigation Settlement Amount           $ 1,500    
Percentage of Additional Payment of Litigation Settlement Amount over Additional Capital Receipt           20.00%    
Indemnification Agreement [Member]                
Contingencies (Details) [Line Items]                
Gain Contingency, Unrecorded Amount $ 48,500         $ 48,500    
Minimum [Member] | Siemens [Member]                
Contingencies (Details) [Line Items]                
Litigation Settlement Period   2015            
Minimum [Member] | Subpoena [Member]                
Contingencies (Details) [Line Items]                
Litigation Settlement Period           2004    
Amount of Additional Capital Receipt Condition for Litigation Settlement           $ 10,000    
Maximum [Member] | Siemens [Member]                
Contingencies (Details) [Line Items]                
Litigation Settlement Period   2019            
Maximum [Member] | Subpoena [Member]                
Contingencies (Details) [Line Items]                
Litigation Settlement Period           2014